The Separation of Natural Components of Fats and Oils by Molecular Distillation.

Adsorptive bleaching and molecular distillation of menhaden oil

“…The reports mentioned have reviewed the literature on V. anthelmintica (1); described procedures used for the production and purification of the oxygenated fatty components; trivernolin, 1, 3-divernolin, vernolic acid, methyl vernolate and 12, 13-dihydroxyoleic acid (2)(3)(4)(5); presented information on a satisfactory gas-liquid chromatographic column for the determination of epoxyoleie acid in seed oils (6), and given accounts of evaluation studies on the stabilizing properties of some Vernonia products (7,8). Quality appeared to be related to seed density as judged by high oil content of 25 to 32%, the oils having oxirane oxygen values of 3.6 to 4.0% with low acidity, less than 2% calculated as epoxyo]eic acid.…”

“…The chemical properties of distilled triglyeerides would not necessarily be changed by this method of refining. Molecular distillation as a method for refining natural oils has been used very little in the United States, with the exception that coned vitamin A from fish-liver oils was produced by this method prior to and during World War II (8).…”

“…A series of reports from this laboratory has appeared related to work on imported V. anthelmintica whose seed has held from 18 to 27% oil; about 65-70% of the oil has been composed of the single compound trivernolin, the triglyeeride of vernolie (12,13-epoxyoleie) acid. The reports mentioned have reviewed the literature on V. anthelmintica (1); described procedures used for the production and purification of the oxygenated fatty components; trivernolin, 1, 3-divernolin, vernolic acid, methyl vernolate and 12, 13-dihydroxyoleic acid (2-5); presented information on a satisfactory gas-liquid chromatographic column for the determination of epoxyoleie acid in seed oils (6), and given accounts of evaluation studies on the stabilizing properties of some Vernonia products (7,8).…”

“…Molecular distillation as a method for refining natural oils has been used very little in the United States, with the exception that coned vitamin A from fish-liver oils was produced by this method prior to and during World War II (8). Distilled fish oils should be low in free fatty acids, improved in color and odor, and contain little or no polymeric matter.…”

Exudative Diathesis and Muscular Dystrophy Induced in the Chick by Esters of Polyunsaturated Fatty Acids

“…Four equal-volume fractions of ethyl esters were obtained by the "cyclic" molecular distillation technique of Cawley, Barnitz, and Jackson, as reported by Embree (4). A forerun distillate and a pot residue, obtained during the distillation, each of which amounted to about 470, were discarded.…”